Syntax highlighting in Terminal Mac OS X
A great way to get basic syntax highlighting on your console is to install fishfish. It offers basic syntax highlighting and much more.
Here is a screenshot of how it looks like:
This answer explains how to configure the colors used by your Terminal profiles (e.g. a Futurama based color scheme) and how to enable color output for selected commands.
You can easily adapt this answer to make only your command input colored by applying what is explained in this post's section Colors instead of making text bold.